- 3rd person form: "Does" this or that.
- For all const methods that return something: "Returns" ...
- For boolean return value: "Returns true if " ...

Doxygen comments.

Tried removal of Rotate from Geometry which however is required by IsGISAXS07.
Will be reverted in a minuted.

  (typedef Geometry::BasicVector3D<int> IndexVector3D
   now in ISelectionRule.h).
Class description for SimpleSelectionRule.

Removed instance() from python functional tests; ISingleton and MaterialManager are (probably) thread safe now

Emptied Coordinate3D.h:
   only use typedef Geometry::BasicVector3D<int> IndexVector3D;

Outcomment Python compilation.
Work on layout while studying code.

to replace Coordinate3D<int>

Renounce use of delegating constructors to avoid warnings from pre-C++11.
Improve comments.

Removed duplicate function names (rho, r) from BasicVector3D.

Insert new header comment block, remove old one, manually improve file comments (defines / implements), change brief function description to doxygen format, remove some outcommented code

Lattice2DIFParameter now is a class, InterferenceFunction2DLattice is protected against zero denominator, fix in project file to correctly treat FP exceptions under mac/linux